Bill "Billy" Kentworthy was a reporter for the Wall Street Journal.
Billy met Sam Seaborn at a bar and pressed him on Josh Lyman's status following an incident with Mary Marsh. He was convinced that Lyman would be forced to resign to appease Al Caldwell. He was also the 'friend' Sam asked to check subtly whether Laurie was really looking at him, which Billy did, but in an incredibly overt manner. (Pilot)